Annals of Occupational and Environmental Medicine

Jung Jeung Lee

5 Articles

Farmers'Syndrome and its Risk Factors of Vinylhouse and Non-vinylhouse Farmers in Gyeongbuk Province Rural Area: Jung Jeung Lee, Jin Hoon Yang, In Sob Hwang; Korean Journal of Occupational and Environmental Medicine 2006;18(2):146-155. Published online June 30, 2006; DOI: https://doi.org/10.35371/kjoem.2006.18.2.146

OBJECTIVES
This study was performed to estimate the risk factors affecting the farmers'syndrome of vinylhouse and non-vinylhouse farmers in the Gyeongbuk Province rural area.
METHODS
As a cross-sectional study, a questionnaire survey was conducted from 2003 to 2005. Data was collected from 243 vinylhouse farmers and 236 non-vinylhouse farmers. The data from 394 subjects were used for the final analysis. We surveyed their lifestyle, 8 components of farmers'syndrome and characteristics of farm work.
RESULTS
For the vinylhouse and non-vinylhouse workers, 32.0% and 34.0% were positive for farmers syndrome, while 48.3% and 43.5% were suspicious, respectively. The differences between the two groups were not significant. For both groups, the most frequent symptom of farmers'syndrome was lumbago, followed by paresthesia of hand or foot, and shoulder stiffness. Among the vinylhouse workers, the rates of wearing protective equipment and washing the skin after spraying pesticide were significantly lower than among the non-vinylhouse workers. From multiple logistic regression analysis, the risk factors significantly associated with farmers'syndrome were sex {odds ratio (OR)=3.12, 95% confidence interval (CI)=1.42-6.89} and hours of farming per day (OR=2.63, 95%CI=1.22-5.65) among vinylhouse workers. However, sex (OR=4.24, 95%CI=1.87-9.65) was the only the risk factor significantly associated with farmers'syndrome among the non-vinylhouse workers.
CONCLUSIONS
In conclusion, educational programs and attention to the female farmers were needed in particular. In addition, it was recommended that the farmers wear protective equipment continuously from opening the coverlets of the pesticide container to the completion of pesticide spraying, and wash the skin immediately after contact with pesticides.

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Occupational Exposure to Pesticides and Nerve Conduction Studies Among Korean Farmers
Su Kyeong Park, Kyoung Ae Kong, Eun Shil Cha, Young Joo Lee, Gyu Taek Lee, Won Jin Lee
Archives of Environmental & Occupational Health.2012; 67(2): 78. CrossRef
A Study on Health Promotion Lifestyle, Farmers' Syndrome and Related Factors of Workers in Agricultural Industry
Ae-Ran Joo
Korean Journal of Occupational Health Nursing.2012; 21(1): 37. CrossRef
Agricultural Safety Clothing: Implications for Making and Selecting Clothes
Jong-Suk Chun, Jung-Woo Jee, Kyoung-Sook Hwang
Journal of the Ergonomics Society of Korea.2011; 30(4): 509. CrossRef
Work-related Injuries and Diseases of Farmers in Korea
Kwan LEE, Hyun-Sul LIM
INDUSTRIAL HEALTH.2008; 46(5): 424. CrossRef

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Three Cases of High Signal Intensity by Brain Magnetic Resonance Imaging in CO2 arc Welders: Young Seoub Hong, Myung Ah Lim, Yong Hee Lee, Hae Kwan Cheong, Ji Yong Kim, Hyun Sul Lim, Jung Jeung Lee, Kong Joon Sa, Joon Youn Kim; Korean Journal of Occupational and Environmental Medicine 1998;10(2):290-298. Published online May 31, 1998; DOI: https://doi.org/10.35371/kjoem.1998.10.2.290

Abstract PDF

We experienced three cases of high signal intensity observed by Brain Magnetic Resonance Imaging in CO2 arc welders of steel-frame manufacturing industry. Case 1 was a 35 years old man who has been an CO2 arc welder for 10 years, admitted a sudden onset of tonic clonic seizure. He complained fever, chilling and myalgia since 3 days before admission. On admission, in the test of manganese exposure indices, manganese concentrations of blood, urine and scalp hair were 5.17 microgram/dL, 22.00 microgram/l and 31.25 ppm respectively. Case 2 was a 35 years old man who has been an CO2 arc welder for 20 years. On admission, He complained fatigue, numbness and weakness of extremities, and decrease of libido. In the test of manganese exposure indices, manganese concentrations of blood, urine and scalp hair were 6.34 microgram/dL, 14.62 microgram/l and 57.87 ppm respectively. In neurologic examination, Palmo-mentis reflex and Myerson sign were observed. Case 3 was a 33 years old man who has been an CO2 arc welder for 16 years. On admission, He complainer loss of appetite, numbness of extremities, fatigue and decrease of attention. In the test of manganese exposure indices, manganese concentrations of blood, urine and scalp hair were 5.14 microgram/dL, 13.79 microgram/l and 50.08 ppm respectively. In neurologic examination, Myerson sign was observed. In brain magnetic resonance imaging, T1WI showed symmetrical high signal intensity in basal ganglia and midbrain of three cases. Authors argued that they were developed by manganese exposure, and we considered that follow up study would be necessary.

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A Study on the Total, Particle Size-Selective Mass Concentration of Airborne Manganese, and Blood Manganese Concentration of Welders in a Shipbuilding Yard
Jong Su Park, Pan Gyi Kim, Jee Yeon Jeong
Journal of Korean Society of Occupational and Environmental Hygiene.2015; 25(4): 472. CrossRef
Occupational Diseases in Korea
Seong-Kyu Kang, Eun A Kim
Journal of Korean Medical Science.2010; 25(Suppl): S4. CrossRef
Occupational Neurological Disorders in Korea
Eun-A Kim, Seong-Kyu Kang
Journal of Korean Medical Science.2010; 25(Suppl): S26. CrossRef

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ALDH2 Genetic Polymorphism and Urinary Hippuric Acid Concentration in Toluene Exposed Workers: Oh Choon Kwon, Ree Joo, Jung Jeung Lee, Chang Yoon Kim, Jong Hak Chung, Seong Yong Kim; Korean Journal of Occupational and Environmental Medicine 1997;9(2):332-340. Published online June 30, 1997; DOI: https://doi.org/10.35371/kjoem.1997.9.2.332

Abstract PDF: In this study we evaluated the effects of the genetic polymorphism of aldehyde dehydrogenase2 (ALDH2) on toluene metabolism and determined biological exposure indices (BEIs) for toluene by the genotypes of ALDH2. The study subject were 77 men workers who are handling toluene in a video tape manufacturing factory and a textile company. Through the face-to-face interview, the information about smoking and drinking behavior wag obtained. For determination of ALDH2 poly morphism, 5 ml of venous blood sample was obtained from each subject after informed consent. DNA was extracted from the buffy coat and ALDH2 genotyping were performed using a polymerase chain reaction (PCR) method. The genotype of ALDH2 was classified into the homozygous genotype of normal ALDH2 (NN), and the heterozygous genotype of normal and inactive ALDH2 (ND), and homozygous genotype of an inactive ALDH2(DD). The concentration of hippuric acid (HA), the main metabolite of toluene, was determined in urine specimens collected at the end of shift, corrected with creatinine (HA/C), and compared with BEI for toluene, which is 2.5 g/g creatinine. The personal exposure level of toluene were monitored, using personal air sampler and analyzed by gas chromatography. The frequencies of the three genotypes in this study subjects were, NN : 45 (58.4%), ND : 26 (33.8%) and DD : 6 (7.8%), and frequencies of the genotypes in the middle or heavy toluene exposure workers were not significantly different from those in the mild toluene exposure workers. The frequencies of the DD type of ALDH2 was lower among alcohol drinkers than among non-drinkers. The urinary HA concentration of DD group was significantly lower than that of the NN or ND group, which suggests that the HA formation from toluene decreased in DD group. Regression lines were used to estimate the BEIs of the NN, ND, and DD groups. NN : y = 0.0085x + 0.23, r = 0.90 ND : y = 0.0074x + 0.21, r = 0.85 DD : y = 0.0041x + 0.82, r = 0.83 The three regression lines revealed that the estimated urinary HA concentration of NN, ND, and DD groups at 377 mg/m3 toluene(TLV-TWA) exposure were 3.43, 3.00, and 2.37 g/g creatinine, respectively. The HA concentration of the NN, and ND group were higher than that of the ACGIH BEI (2.5 g/g creatinine) ; however, the HA level of DD group was lower than the BEI. These results suggests that the ACGIH BEI is not adequate to estimate the toluene exposure of the NN, ND and DD groups at the same time. Based upon those results, a new BEI for ALDH2 deficient workers may be necessary.

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Effect of Long-Term Noise Exposure on the Blood Pressure in Factory Workers: Bok Youn Kim, Cheon Tae Kim, Jung Jeung Lee, Hong Chin Park, Chang Yoon Kim, Pock Soo Kang; Korean Journal of Occupational and Environmental Medicine 1996;8(1):43-58. Published online February 29, 1996; DOI: https://doi.org/10.35371/kjoem.1996.8.1.43

Abstract PDF

The question of an association between occupational noise exposure and blood pressure has important public health implications. The harmful effects of hypertension are well known and noise is considered the mosts pervasive problem of all occupational exposures in Taegu City, Korea. A cross-sectional study on the effect of long-term noise exposure on blood pressure was done for 276 noise exposed workers (203 male workers, 73 female workers). Long-term noise exposure was measured by cumulative noise exposure level and noise-induced hearing loss. Hearing loss=(500Hz+2x1,000Hz+2x2,000Hz+4,000Hz)/6 Questionaire was administered to the workers, which includes age, sex, occupational history on the noise exposure, habits on alcohol drinking and smoking, practice of regular exercise, family history of hypertension. Type A behavior, question on stress, height, weight and blood pressure were measured. Serum triglyceride and low density lipoprotein (LDL) were also measured. Audiometry was done in the closed booth at 1,000, 2,000, 3,000, 4,000, 6,000, 8,000, 1,000 and 500Hz in order. Mutiple logistic regression analysis revealed that cumulative noise exposure level(p<0.05), serum triglyceride(p<0.01), age(p<0.01) and family history of hypertension (p<0.05) predict hypertension (systolic blood pressure: 160mmHg or above, or diastolic blood pressure: 95mmHg or above) in male workers. In female workers, serum triglyceride (p<0.01), LDL (p<0.01) and family history of hypertension(p<0.05) were predictors of hypertension (systolic blood pressure: 160mmHg or above, or diastolic blood pressure: 95mmHg or above). As the number of female workers with hypertension was too small, the multiple logistic regression was done according to hypertension criteria of systolic blood pressure greater than or equal to 140mmHg, or diastolic blood pressure greater than or equal to 90mmHg. Based on this criteria, cumulative noise exposure level (p=0.055) and age (p=0.057) predict hypertension. It is suggested that long-term noise exposure which was calculated by cumulative noise exposure level was a significant predictor of hypertension in noise exposed workers.

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Overview of the Environmental Damage, Property Loss, and Health Impairment of Residents around a US Air Force Firing Range
Hyun-Sul Lim
Korean Journal of Environmental Health Sciences.2011; 37(3): 173. CrossRef
Cohort study for the effect of chronic noise exposure on blood pressure among male workers in Busan, Korea
Ji Ho Lee, Weechang Kang, Seung Rim Yaang, Nari Choy, Choong Ryeol Lee
American Journal of Industrial Medicine.2009; 52(6): 509. CrossRef

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The Effect of Day and Night Shift on Risk Factors of Cardiovascular Disease in Automobile: Manufacturing Plant Workers: Jae Haek Shin, Jung Jeung Lee, Kyeong Soo Lee, Joon Sakong, Chang Yoon Kim, Jong Hak Chung; Korean Journal of Occupational and Environmental Medicine 1995;7(1):28-45. Published online February 28, 1995; DOI: https://doi.org/10.35371/kjoem.1995.7.1.28

Abstract PDF: An investigation of effects of shift work on cardiovascular risk factors has been carried out on workers of a motor company in Ulsan, for 2 months from 20 April to 20 June,1993. This cross-sectional survey was designed to compare the shift workers (n=420) with day workers (n=88). The study subjects were drawn from workers who were employed in twelve hour shift system. A control group who never experienced shift work was drawn from different sections of the factory. Each worker completed a medical and occupational questionnaire and cardiovascular risk factors such as blood pressure, total cholesterol, triglyceride, apolipoprotein A-1 and B were measured. In univariate analysis, apolipoprotein B and the ratio of apolipoprotein B to apolipoprotem A-1 increased in shift workers. In multiple regression analysis for the systolic blood pressure, shift work was significant independent variable (p=0.059). In multiple regression analysis for the cholesterol, age and body mass index were significant independent variables(p<0.01), but shift work was not a statistically significant independent variable. In multiple regression analysis for the ratio of apolipoprotein B to apolipoprotein A-1, shift work was significant independent variable (p<0.05). Shift workers who have engaged in shift work more than 5 years have an excess of total cholesterol, apolipoprotein B and ratio of apolipoprotein B to apolipoprotein A-1 than those who have engaged in shift work less than 5 years (p<0.05). In multiple regression analysis for the cholesterol, duration of shift work was a significant independent variable (p=0.012). In multiple regression analysis for the apolipoprotein B and ratio of apolipoprotein B to apolipoprotein A-1, duration of shift work was not a significant independent variable.

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